JPH0927243A - Touch screen - Google Patents
Touch screenInfo
- Publication number
- JPH0927243A JPH0927243A JP19932595A JP19932595A JPH0927243A JP H0927243 A JPH0927243 A JP H0927243A JP 19932595 A JP19932595 A JP 19932595A JP 19932595 A JP19932595 A JP 19932595A JP H0927243 A JPH0927243 A JP H0927243A
- Authority
- JP
- Japan
- Prior art keywords
- insulating substrate
- electrode
- circuits
- circuit
- touch panel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はタッチパネルに関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a touch panel.
【０００２】[0002]
【従来の技術】タッチパネルは、液晶やプラズマ、エレ
クトロルミネセンス等のディスプレイ等の表示体の表面
に載せて情報を入力したり、あるいは図面等の上に載せ
て座標を指示するために用いている。2. Description of the Related Art A touch panel is used for inputting information on a surface of a display such as a display such as a liquid crystal display, a plasma display, and an electroluminescence display, or for indicating coordinates on a drawing or the like. .
【０００３】このタッチパネルは、例えば図３に示す通
りの構造になっている。すなわち、一方の絶縁基板３０
には、図３（イ）に示す通り、長方形状のガラス板等を
用いる。そしてこの絶縁基板３０の表面にＩＴＯやＳｎ
Ｏ2 等を積層し、周辺部をエッチング等して取り除き、
長方形状の透明な電極３１を形成している。また、この
電極３１の両長辺に各々接続してＡｇインクを印刷する
ことにより、２個の取出し用回路３２を設けている。ま
た、他方の絶縁基板３３には、図３（ロ）に示す通り、
ほぼ長方形状で一方の長辺に突起３４を設けたポリエス
テルフィルム等のプラスチックフィルムを用いる。この
絶縁基板３３の表面にＩＴＯ等を積層し、周辺部をエッ
チング等して取り除き、長方形状の透明な電極３５を設
けている。この電極３５の両短辺に各々接続してＡｇイ
ンクを印刷することにより２個の取出し用回路３６を設
けている。また、この取出し用回路３６及び電極３５と
絶縁して突起３４の根本部から先端部にまで取出し用回
路３７を設ける。そして図３（ハ）に示す通り、絶縁基
板３０及び３３どうしを端部に設けた両面テープ３８を
介して重ね合せて互いに張付けている。This touch panel has a structure as shown in FIG. 3, for example. That is, one insulating substrate 30
For this, a rectangular glass plate or the like is used as shown in FIG. Then, ITO or Sn is formed on the surface of the insulating substrate 30.
Layer O 2 etc. and remove the peripheral part by etching etc.
A rectangular transparent electrode 31 is formed. Further, two extraction circuits 32 are provided by connecting Ag electrodes to both long sides of the electrode 31 and printing Ag ink. On the other insulating substrate 33, as shown in FIG.
A plastic film such as a polyester film having a substantially rectangular shape and provided with a protrusion 34 on one long side is used. ITO or the like is laminated on the surface of the insulating substrate 33, and the peripheral portion is removed by etching or the like to provide a rectangular transparent electrode 35. Two extraction circuits 36 are provided by connecting Ag electrodes to both short sides of the electrode 35 and printing Ag ink. Further, a take-out circuit 37 is provided so as to be insulated from the take-out circuit 36 and the electrode 35 and extend from the root to the tip of the projection 34. Then, as shown in FIG. 3C, the insulating substrates 30 and 33 are overlapped and affixed to each other via the double-sided tape 38 provided at the ends.
【０００４】[0004]
【発明が解決しようとする課題】ところで、取出し用回
路３２，３６，３７の厚さは７〜２０μｍ程度になって
いる。そしてタッチパネル３９の端部の張付け箇所４０
において、絶縁基板３０の表面の取出し用回路３２と絶
縁基板３３の表面の取出し用回路３６の両者が重なる部
分と、どちらか一方のみだけが配置されている部分がで
きる。そのため、この張付け箇所４０において、絶縁基
板３０の表面から絶縁基板３３までの厚さが場所により
異なり、凹凸状になる。従って、プラスチックフィルム
等からなる絶縁基板３３が波を打ったり、また、絶縁基
板３３がガラス板等からなる絶縁基板３０に接近しすぎ
てニュートンリングが発生し、絶縁基板３３を通して表
示が見えにくくなる欠点がある。By the way, the thickness of each of the take-out circuits 32, 36 and 37 is about 7 to 20 .mu.m. Then, the sticking point 40 at the end of the touch panel 39
In the above, there is a portion where both the extraction circuit 32 on the surface of the insulating substrate 30 and the extraction circuit 36 on the surface of the insulating substrate 33 overlap, and a portion in which only one of them is arranged. Therefore, in the pasted portion 40, the thickness from the surface of the insulating substrate 30 to the insulating substrate 33 varies depending on the place and becomes uneven. Therefore, the insulating substrate 33 made of a plastic film or the like undulates, or the insulating substrate 33 comes too close to the insulating substrate 30 made of a glass plate or the like to generate Newton's rings, which makes it difficult to see the display through the insulating substrate 33. There are drawbacks.
【０００５】本発明の目的は、以上の欠点を改良し、ニ
ュートンリング等の発生を防止して表示を見易くできる
タッチパネルを提供するものである。An object of the present invention is to improve the above-mentioned drawbacks and to provide a touch panel which prevents the occurrence of Newton's rings and the like and makes the display easy to see.
【０００６】[0006]
【課題を解決するための手段】本発明は、上記の目的を
達成するために、表面に電極と少なくともこの電極に接
続した取出し用回路とを設けた絶縁基板どうしを前記取
出し用回路を介して張付けたタッチパネルにおいて、絶
縁基板の取出し用回路のない張付け箇所にスペーサを設
けることを特徴とするタッチパネルを提供するものであ
る。In order to achieve the above-mentioned object, the present invention provides an insulating substrate having electrodes and at least a take-out circuit connected to the electrodes on the surface thereof via the take-out circuit. The present invention provides a touch panel in which a spacer is provided in a stuck touch panel where the insulating substrate is not provided with a take-out circuit.
【０００７】なお、電極は、ＩＴＯやＳｎＯ2 等を真空
蒸着法やスパッタリング法、イオンブレーティング法等
により積層して設ける。The electrodes are formed by stacking ITO, SnO 2 or the like by a vacuum deposition method, a sputtering method, an ion plating method or the like.
【０００８】また、スペーサは取出し用回路とほぼ同程
度の厚さが良い。この場合、スペーサは取出し用回路と
同時に形成することにより、製造が容易になる。Further, the spacer is preferably as thick as the takeout circuit. In this case, the spacer is formed at the same time as the extraction circuit, which facilitates the manufacturing.
【０００９】[0009]
【作用】本発明によれば、絶縁基板の取出し用回路のな
い張付け箇所にスペーサを設けているため、絶縁基板ど
うしが接近しすぎてニュートンリング等が発生するのを
防止でき、表示が見えにくくなるのを防止できる。According to the present invention, since the spacers are provided at the places where the insulating substrates are not attached to the take-out circuit, the spacers can be prevented from being too close to each other and Newton's rings or the like can be prevented, and the display is difficult to see. Can be prevented.
【００１０】[0010]
【実施例】以下本発明を実施例に基づいて説明する。図
１（イ）において、１は厚さ１．１mmの長方形状のガラ
ス板からなる絶縁基板である。２はこの第１の絶縁基板
１の表面の中央部に設けたＩＴＯからなる透明な長方形
状の第１の電極である。３及び３’は、この第１の電極
２の各長辺に接続した、Ａｇインクからなる第１の取出
し用回路である。そして一方の第１の取出し用回路３
は、第１の電極２の一方の長辺４に接続するとともに、
第１の絶縁基板１の両長辺５及び５’並びに一方の短辺
６に沿って設け、端部の幅を広くして接続部７としてい
る。また、他方の第１の取出し用回路３’は第１の電極
２の他方の長辺４’に接続し、中央部から先端の幅の広
い突起を設けて接続部７’としている。８は、第１の取
出し用回路３を配置したのとは別の第１の絶縁基板１の
短辺６’に沿って、かつ第１の電極２並びに第１の取出
し用回路３及び３’と絶縁して設けた第１のスペーサで
あり、Ａｇインクからなり、第１の取出し用回路３及び
３’と同じ厚さになっている。９は所定の間隔で設けた
ドット状の絶縁性のセパレータである。EXAMPLES The present invention will be described below based on examples. In FIG. 1A, 1 is an insulating substrate made of a rectangular glass plate having a thickness of 1.1 mm. Reference numeral 2 is a transparent rectangular first electrode made of ITO provided in the central portion of the surface of the first insulating substrate 1. Reference numerals 3 and 3 ′ are first extraction circuits made of Ag ink, which are connected to the long sides of the first electrode 2. And one of the first extraction circuits 3
Is connected to one long side 4 of the first electrode 2 and
It is provided along both long sides 5 and 5 ′ and one short side 6 of the first insulating substrate 1, and the width of the end is widened to form the connecting portion 7. The other first extraction circuit 3'is connected to the other long side 4'of the first electrode 2, and a projection having a wide tip from the central portion is provided as a connection portion 7 '. Reference numeral 8 indicates a short side 6'of the first insulating substrate 1 different from the one on which the first extracting circuit 3 is arranged, and the first electrode 2 and the first extracting circuits 3 and 3 '. Is a first spacer provided insulatively, is made of Ag ink, and has the same thickness as the first extraction circuits 3 and 3 '. Reference numeral 9 is a dot-shaped insulating separator provided at a predetermined interval.
【００１１】また、図１（ロ）において、１０は、ほぼ
長方形状で一方の長辺に突起１１を設けた第２の絶縁基
板であり、ハードコートつきの厚さ１２５μｍのポリエ
ステルフィルムからなる。１２はこの第２の絶縁基板１
０の表面の中央部に設けたＩＴＯからなる透明な長方形
状の第２の電極である。１３及び１３’は、この第２の
電極１２の各長辺１４及び１４’に接続した、Ａｇイン
クからなる第２の取出し用回路であり、先端を突起１１
の端部にまで延長して設けている。１５及び１５’は、
Ａｇインクからなる第３の取出し用回路であり、一端を
幅を広くして接続部１６及び１６’とし第２の電極１
２、第２の取出し用回路１３及び１３’と絶縁して突起
１１の根本部分に配置し、他端を突起１１の端部にまで
延長して設けている。１７は、第２の取出し用回路１３
及び１３’を配置したのとは別の第２の絶縁基板１０の
長辺１８に沿って、かつ第２の電極１２並びに第２の取
出し用回路１３及び１３’、第３の取出し用回路１５及
び１５’と絶縁して設けた第２のスペーサである。この
第２のスペーサ１７はＡｇインクからなり、第２の取出
し用回路１３及び１３’並びに第３の取出し用回路１５
及び１５’と同じ厚さになっている。Further, in FIG. 1B, reference numeral 10 is a second insulating substrate having a substantially rectangular shape and provided with a protrusion 11 on one long side, which is made of a 125 μm thick polyester film with a hard coat. 12 is the second insulating substrate 1
It is a transparent rectangular second electrode made of ITO provided in the central portion of the surface of 0. Reference numerals 13 and 13 ′ are second extraction circuits made of Ag ink, which are connected to the long sides 14 and 14 ′ of the second electrode 12, respectively, and the tips of which are protrusions 11
It is extended to the end of. 15 and 15 'are
A third extraction circuit made of Ag ink, one end of which is widened to form the connection parts 16 and 16 ', and the second electrode 1 is formed.
2. The second extraction circuits 13 and 13 'are insulated from each other and arranged at the root of the projection 11, and the other end is extended to the end of the projection 11. 17 is a second take-out circuit 13
And 13 'are arranged along a long side 18 of the second insulating substrate 10 different from that in which the second electrode 12 and the second extracting circuits 13 and 13' and the third extracting circuit 15 are arranged. And 15 'are the second spacers provided so as to be insulated. The second spacer 17 is made of Ag ink, and the second take-out circuits 13 and 13 'and the third take-out circuit 15 are formed.
And 15 'have the same thickness.
【００１２】さらに、図１（ハ）において、１９は、両
面テープからなるセパレータであり、第１の絶縁基板１
と第２の絶縁基板１０とを端部において張付けるもので
あり、長方形状で、中空になっていて、第２の絶縁基板
１０の突起１１の根本部分にあたる箇所を切り欠いた形
状になっている。Further, in FIG. 1C, 19 is a separator made of a double-sided tape, which is the first insulating substrate 1.
The second insulating substrate 10 and the second insulating substrate 10 are attached to each other at their ends. The rectangular shape is hollow and the protrusion 11 of the second insulating substrate 10 has a notch at the root. There is.
【００１３】そして、図１（ニ）及び（ホ）に示す通
り、第１の絶縁基板１にセパレータ１９を介して第２の
絶縁基板１０を積層して端部で張付け、タッチパネル２
０とする。なお、第１の取出し用回路３及び３’の接続
部７及び７’は、各々第２の取出し用回路１３及び１
３’の接続部１６及び１６’と、導電性接着剤により接
続している。Then, as shown in FIGS. 1D and 1E, the second insulating substrate 10 is laminated on the first insulating substrate 1 with the separator 19 interposed therebetween, and the second insulating substrate 10 is attached at the end portions thereof, and the touch panel 2
Set to 0. The connecting portions 7 and 7'of the first extracting circuits 3 and 3'are respectively connected to the second extracting circuits 13 and 1 '.
It is connected to the connecting portions 16 and 16 'of 3'by a conductive adhesive.
【００１４】なお、上記実施例において、第１の電極２
及び第２電極１２は、ＩＴＯを真空蒸着法等により積層
し、周辺部をエッチングして除去して形成する。また、
第１の取出し用回路３及び３’と、第２の取出し用回路
１３及び１３’、第３の取出し用回路１５及び１５’、
第１のスペーサ８、第２のスペーサ１７とは、Ａｇイン
クをスクリーン印刷して設ける。なお第１の取出し用回
路３及び３’と第１のスペーサ８そして第２の取出し用
回路１３及び１３’と第３の取出し用回路１５及び１
５’、第２のスペーサ１７とは各々同時に、同じ厚さに
設ける。さらに、第１の絶縁基板１と第２の絶縁基板１
０とは熱圧着してセパレータ１９により互いに張付けて
いる。In the above embodiment, the first electrode 2
The second electrode 12 is formed by stacking ITO by a vacuum deposition method or the like and etching and removing the peripheral portion. Also,
First extraction circuits 3 and 3 ', second extraction circuits 13 and 13', third extraction circuits 15 and 15 ',
The first spacer 8 and the second spacer 17 are provided by screen-printing Ag ink. The first extraction circuits 3 and 3 ', the first spacer 8, and the second extraction circuits 13 and 13' and the third extraction circuits 15 and 1
5 ′ and the second spacer 17 are provided at the same time and with the same thickness. Further, the first insulating substrate 1 and the second insulating substrate 1
0 is thermocompression-bonded to each other and attached to each other by the separator 19.
【００１５】図１の実施例において、図１（ニ）から明
らかな通り、第１の絶縁基板１の第１の取出し用回路３
のない張付け箇所２１に第１のスペーサ８を設けている
ため、両端が同じ厚さになっている。そのため、第２の
絶縁基板１０が凹凸状に波を打ったり、第２の絶縁基板
１０の片側が第１の絶縁基板１に接近しすぎてニュート
ンリングが発生することがなくなる。また、第２の絶縁
基板１０においても同様であり、図１（ホ）に示す通
り、第２の絶縁基板１０の第２の取出し用回路１３のな
い張付け箇所２２に第２のスペーサ１７を設けているた
め、両端が同じ厚さになる。従って、第２の絶縁基板１
０が波を打ったりすることがない。In the embodiment of FIG. 1, as is apparent from FIG. 1D, the first extracting circuit 3 of the first insulating substrate 1 is used.
Since the first spacer 8 is provided at the unattached portion 21, the both ends have the same thickness. Therefore, the second insulating substrate 10 does not wavy in an uneven shape, and one side of the second insulating substrate 10 does not come too close to the first insulating substrate 1 to cause Newton's rings. The same applies to the second insulating substrate 10, and as shown in FIG. 1 (e), the second spacer 17 is provided at the attachment portion 22 of the second insulating substrate 10 where the second extraction circuit 13 is not provided. Therefore, both ends have the same thickness. Therefore, the second insulating substrate 1
Zero does not wave.
【００１６】また、図２は本発明の他の実施例を示し、
図１と同じものは同一の符号で示している。この実施例
では、図２（イ）に示す通り、第１の絶縁基板１の表面
に設けた第１の取出し用回路２３及び２３’が第１の電
極２と接続する部分の幅を狭くしている。そして図２
（ロ）に示す通り、第２の絶縁基板１０の表面に設けた
第２の取出し用回路２４及び２４’の第２の電極１２の
長辺２５に沿う部分の幅を狭くするとともに第２の電極
１２の他の長辺２５’に沿って設けた第２のスペーサ２
６の幅を狭くしている。従って、図２（ハ）に示す通
り、タッチパネル２７は、両端が同じ厚さになってい
て、ニュートンリング等の発生を防止できる。FIG. 2 shows another embodiment of the present invention,
The same parts as those in FIG. 1 are designated by the same reference numerals. In this embodiment, as shown in FIG. 2A, the width of the portion where the first extraction circuits 23 and 23 ′ provided on the surface of the first insulating substrate 1 are connected to the first electrode 2 is reduced. ing. And FIG.
As shown in (b), the width of the portion along the long side 25 of the second electrode 12 of the second extraction circuits 24 and 24 ′ provided on the surface of the second insulating substrate 10 is narrowed and the second The second spacer 2 provided along the other long side 25 'of the electrode 12
The width of 6 is narrowed. Therefore, as shown in FIG. 2C, the touch panel 27 has the same thickness at both ends and can prevent the occurrence of Newton's rings and the like.
【００１７】なお、図１及び図２の実施例では第２の絶
縁基板に突起を設けているが、この突起を設けないで、
代りに独立した絶縁基板を用い、この絶縁基板に取出し
用回路を設けこの取出し用回路を第１の絶縁基板及び第
２の絶縁基板に設けた各取出し用回路に接続するような
構造のタッチパネルにしてもよく、同様な効果が得られ
る。Although the projections are provided on the second insulating substrate in the embodiments shown in FIGS. 1 and 2, the projections are not provided.
Instead, an independent insulating substrate is used, and a circuit for taking out is provided on the insulating substrate, and a circuit for taking out is connected to each of the taking out circuits provided on the first insulating substrate and the second insulating substrate. However, the same effect can be obtained.
【００１８】[0018]
【発明の効果】以上の通り、本発明によれば、絶縁基板
の取出し用回路のない張付け箇所にスペーサを設けてい
るため、絶縁基板が波を打ったり、ニュートンリングが
発生する等して素子が見えにくくなるのを防止でき信頼
性の高いタッチパネルが得られる。As described above, according to the present invention, since the spacer is provided at the portion where the insulating substrate is not provided with the circuit for taking out, the insulating substrate is undulated or a Newton's ring is generated. A touch panel with high reliability can be obtained because it can be prevented from becoming hard to see.
【図１】本発明の実施例の第１の絶縁基板と第２の絶縁
基板、セパレータの各平面図及びタッチパネルの断面
図。FIG. 1 is a plan view of a first insulating substrate, a second insulating substrate, and a separator according to an embodiment of the present invention, and a cross-sectional view of a touch panel.
【図２】本発明の他の実施例の第１の絶縁基板及び第２
の絶縁基板の各平面図並びにタッチパネルの断面図を示
す。FIG. 2 shows a first insulating substrate and a second insulating substrate according to another embodiment of the present invention.
2A and 2B are plan views of the insulating substrate of FIG.
【図３】従来のタッチパネルに用いる絶縁基板の平面図
及びタッチパネルの断面図を示す。FIG. 3 shows a plan view of an insulating substrate used in a conventional touch panel and a cross-sectional view of the touch panel.
１…第１の絶縁基板、 ２…第１の電極、３，３’，２
３，２３’…第１の取出し用回路、 ８…第１のスペー
サ、１０…第２の絶縁基板、 １２…第２の電極、１
３，１３’，２４，２４’…第２の取出し用回路、１
５，１５’…第３の取出し用回路、 １７，２６…第２
のスペーサ、２０，２７…タッチパネル、 ２１，２２
…張付け箇所。1 ... 1st insulating substrate, 2 ... 1st electrode, 3, 3 ', 2
3, 23 '... First extraction circuit, 8 ... First spacer, 10 ... Second insulating substrate, 12 ... Second electrode, 1
3, 13 ', 24, 24' ... second take-out circuit, 1
5, 15 '... Third extraction circuit, 17, 26 ... Second
Spacers, 20, 27 ... Touch panel, 21, 22
… The place to stick.
Claims (1)
した取出し用回路とを設けた絶縁基板どうしを前記取出
し用回路を介して張付けたタッチパネルにおいて、絶縁
基板の取出し用回路のない張付け箇所にスペーサを設け
ることを特徴とするタッチパネル。1. A touch panel in which insulating substrates having electrodes and at least a take-out circuit connected to the electrodes are pasted on the surface via the take-out circuit, and a spacer is provided at a place where the take-out circuit is not provided on the insulating substrate. A touch panel comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19932595A JPH0927243A (en) | 1995-07-13 | 1995-07-13 | Touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19932595A JPH0927243A (en) | 1995-07-13 | 1995-07-13 | Touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0927243A true JPH0927243A (en) | 1997-01-28 |
Family
ID=16405927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19932595A Pending JPH0927243A (en) | 1995-07-13 | 1995-07-13 | Touch screen |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0927243A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6379985B1 (en) * | 2001-08-01 | 2002-04-30 | Xerox Corporation | Methods for cleaving facets in III-V nitrides grown on c-face sapphire substrates |
| CN1322408C (en) * | 2004-09-02 | 2007-06-20 | 松下电器产业株式会社 | Touch panel and the manufacturing method |
-
1995
- 1995-07-13 JP JP19932595A patent/JPH0927243A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6379985B1 (en) * | 2001-08-01 | 2002-04-30 | Xerox Corporation | Methods for cleaving facets in III-V nitrides grown on c-face sapphire substrates |
| CN1322408C (en) * | 2004-09-02 | 2007-06-20 | 松下电器产业株式会社 | Touch panel and the manufacturing method |
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